Mine detail: Black Jack

Previously called ''

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Location

Lat / long: 37.58931, -121.61243

Resource(M)

Tertiary: Manganese, Silica
Other material: Chert, Psilomelane, Pyrolusite
Discovery year: 1884

Production

Operation type: Underground
Development status: Past Producer
First production started: 1885

Geology

References

MRDSM004665
MAS60010003
DEP10211101
Reference{Deposit:: CDMG,BULL.76,1918}{Deposit:: CDMG,BULL.152,1950}{Deposit:: CDMG,BULL.125,1943}{Deposit:: CDMG,BULL.140}
ReporterDeino, Al